Hillman Fasteners 830666 1/4 in Ss Split Lock Washer 100pk

Product Description

The HILLMAN FASTENERS 830666 is a medium split lock washer designed to resist loosening in bolted assemblies under vibration and torque load. Made from stainless steel, this 1/4 inch washer provides corrosion resistance in wet, outdoor, and chemically active environments. The split ring design bites into the bearing surface and fastener head to maintain clamp load over time. Each box contains 100 washers, making it a practical stocking item for service vehicles or shop inventory. Plumbers, electricians, HVAC technicians, and general contractors regularly rely on stainless lock washers where galvanic compatibility and rust resistance are required.

These washers are suited for 1/4 inch fastener applications across residential and light commercial work. Common install scenarios include pipe hanger assemblies, electrical panel mounting, equipment brackets, and outdoor structural connections where standard zinc or plain steel hardware would corrode. The stainless steel construction makes them a direct fit wherever code or spec calls for corrosion-resistant hardware. Sold in a 100-piece pack, they are well-suited for bulk restocking on service trucks or in supply rooms.

Key Features

• Medium split lock washer design resists fastener back-out under vibration
• Stainless steel construction offers corrosion and rust resistance
• Sized for 1/4 inch fasteners
• 100 washers per pack for efficient restocking
• Suitable for wet, outdoor, and corrosive service environments

Compatibility

Designed as a standard medium split lock washer for 1/4 inch fasteners used in general trade, HVAC, plumbing, and electrical installation applications.

Installation Notes

Install lock washers between the fastener head or nut and the bearing surface before final torque. Ensure the split ends seat properly against both mating surfaces to achieve effective locking action. Power down or de-energize any equipment before working on fastened assemblies in electrical or HVAC applications. Follow applicable NEC, IPC, or IFGC guidelines for hardware specifications when required by code.